Commit graph

9 commits

Author SHA1 Message Date
Peng Fan
a3c252d6d6 video: mxsfb: introduce lcdif_power_down
Introudce a new function lcdif_power_down.

1. Waits for a VSYNC interrupt to guarantee the reset is done at the
   VSYNC edge, which somehow makes the LCDIF consume the display FIFO(?)
   and helps the LCDIF work normally at the kernel stage.
2. Add power down function to stop lcdif.

The reason to introduce lcdif_power_down is that we want lcdif to be in
initial state when doing uboot reset or before kernel boot to make
system stable, otherwise system may hang.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2015-11-12 17:40:53 +01:00
Peng Fan
95ae700044 mxs: add parameter base_addr for mxs_set_lcdclk
Change mxs_set_lcdclk prototype to add a new parameter
base_addr. There are two LCD interfaces for i.MX6SX,
we may support LCDIF1 or LCDIF2.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2015-11-12 17:38:08 +01:00
Marek Vasut
84f957f80b video: Implement continuous screen refresh for SmartLCD into mxsfb
The LCDIF interface doesn't give us any means to do continuous refresh
when driving a SmartLCD. To work this around, we produce a special
circular DMA descriptor, which only writes the HW_LCDIF_CTRL0 register
and sets the RUN bit.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
2013-08-09 21:48:57 +02:00
Marek Vasut
9de4b729eb video: Add System-Mode configuration hook into mxsfb
Add hook that allow configuring SmartLCD attached the MXS LCDIF
controller operating in System-Mode. This hook can be overriden
by a platform-specific SmartLCD programming routine, which writes
the SmartLCD specific values into it's registers.

Also, this patch makes sure the SYNC signals are off for the
SmartLCD case.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
2013-08-09 21:48:49 +02:00
Marek Vasut
e57baf5d19 video: Allocate the MXSFB framebuffer aligned
Allocate the framebuffer aligned so it can be flushed
and the flush_dcache_range() function won't complain.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
2013-08-09 21:48:44 +02:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Fabio Estevam
620ca1c174 video: mxsfb: Break the line in videomode message
Currently we have the following on boot:

CPU:   Freescale i.MX28 rev1.2 at 454 MHz
BOOT:  SSP SD/MMC #0, 3V3
DRAM:  128 MiB
MMC:   MXS MMC: 0
Video: MXSFB: 'videomode' variable not set!In:    serial

Break the line of the warning message in order to have a better reading format.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-06-28 16:54:47 +02:00
Fabio Estevam
11f98d1f82 video: mxsfb: Add an entry for mx23evk/mx28vk video modes
Currently the mxsfb driver takes the display timings from the 'videomode'
environment variable.

Provide an example on how to set 'videomode' for using splash screen on
mx23evk and mx28vk boards.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Marek Vasut <marex@denx.de>
2013-05-16 17:44:46 +02:00
Marek Vasut
fb8ddc2452 arm: mxs: Add MXS LCDIF driver
Add basic LCD driver for i.MX233 and i.MX28. This driver allows framebuffer
console and framebuffer logo.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2013-05-06 17:40:22 +02:00